由骨髓产生的单核细胞前驱细胞成熟为单核细胞,通过血液循环分配到各种组织,在那里可以看到变为组织中的巨噬细胞的一系列分化过程。这种血流中的单核细胞向组织巨细胞的分化,不仅形态变化,其结构、机能也有很大变化。就机能而言,吞噬反应,消化细菌时所需很多细胞内酶的活性等也有变化。但是,在这些变化中,最特别的是与各种不同的组织相对应的特有的机能的 The mononuclear progenitor cells produced by the bone marrow mature into monocytes, which are distributed through blood circulation to various tissues where a series of differentiation processes into macrophages in the tissue can be seen. This blood flow of monocytes to the differentiation of tissue cells, not only the morphological changes, its structure, function, there are great changes. In terms of function, phagocytosis, digestion of bacteria required a lot of intracellular enzyme activity also changes. However, among these changes, the most special ones are the unique functions corresponding to different kinds of organizations